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  • Trigger function on deserialization

    - by Tom Savage
    I have a class with a number of fields which are normally calculated in the constructor from other data in the class. They are not serialized to XML because any changes to the rest of the data will likely require their recalculation. Is there a way I can set up a function call to be triggered on deserialization?

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  • Manipulating DisplayMember before it is displayed

    - by DanDan
    Let's say I am using databinding like this: List<Entity> Entities = <some data> entityBinding.DataSource = Entities; lstEntities.DisplayMember = "Description"; which works fine. However, I want to manipulate the string coming back as the Entity's "Description". How can I call a function on DisplayMember?

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  • Access-Control-Request-Header: - x-requested-with

    - by Tom
    Hi Guys, I am building a widget for my users and trying to get it working however I keep running into a X-Domain issue with this header. httpfox gives me - NS_ERROR_DOM_BAD_URI - and on further investigation I find that its Access-Control-Request-Method: GET Access-Control-Request-Header: x-requested-with I am not sure why its not loading but I basically call a script and then I am trying to grab some html to load it but it gets blocked with the above headers. How can I get around this prob ?

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  • Passing enums to functions in C++

    - by rocknroll
    Hi all, I have a header file with all the enums listed (#ifndef #define #endif construct has been used to avoid multiple inclusion of the file) that I use in multiple cpp files in my application.One of the enums in the files is enum StatusSubsystem {ENABLED,INCORRECT_FRAME,INVALID_DATA,DISABLED}; There are functions in the application delcared as ShowStatus(const StatusSubsystem&); Earlier in the application when I made calls to the above function like ShowStatus(INCORRECT_FRAME); my application used to compile perfectly. But after some code was added The compilation halts giving the following error: File.cpp:71: error: invalid conversion from `int' to `StatusSubsystem' File.cpp:71: error: initializing argument 1 of `void Class::ShowStatus(const StatusSubsystem&) I checked the code for any conflicting enums in the new code and it looked fine. My Question is what is wrong with the function call that compiler shows as erroneous? For your reference the function definition is: void Class::ShowStatus(const StatusSubsystem& eStatus) { QPalette palette; mStatus=eStatus;//store current Communication status of system if(eStatus==DISABLED) { //select red color for label, if it is to be shown disabled palette.setColor(QPalette::Window,QColor(Qt::red)); mLabel->setText("SYSTEM"); } else if(eStatus==ENABLED) { //select green color for label,if it is to be shown enabled palette.setColor(QPalette::Window,QColor(Qt::green)); mLabel->setText("SYSTEM"); } else if(eStatus==INCORRECT_FRAME) { //select yellow color for label,to show that it is sending incorrect frames palette.setColor(QPalette::Window,QColor(Qt::yellow)); mLabel->setText("SYSTEM(I)"); } //Set the color on the Label mLabel->setPalette(palette); } A strange side effect of this situation is it compiles when I cast all the calls to ShowStatus() as ShowStatus((StatusSubsystem)INCORRECT_FRAME); Though this removes any compilation error, but a strange thing happens. Though I make call to INCORRECT_FRAME above but in function definition it matches with ENABLED. How on earth is that possible? Its like while passing INCORRECT_FRAME by reference, it magically converts to ENABLED, which should be impossible. This is driving me nuts. Can you find any flaw in what I am doing? or is it something else? The application is made using C++,Qt-4.2.1 on RHEL4. Thanks.

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  • Best practise - Accessing preferences globally

    - by JK
    User preferences for my app is store in NSUserDefaults. This includes a "theme" preference, which needs to be accessed frequently by multiple classes. I would prefer not to call "[[NSUserDefaults standardUserDefaults] objectForKey:..." repeatedly as it makes for inconcise code and I assume will incur overhead. What is the preferred and most concise method for accessing preferences in any class?

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  • Jquery Dom and functions in html body

    - by slick
    I have before my closing body tag here i have the usual $(function() { function test(){ alert("test"); } }); in my html i have input tags I get an error of that test is undefined. I am trying to make IE7 call function onchange I had a whole solution working but since IE7 does not like .change() i am going to put onchange attributes within the inputs but now i have this issue. Any idea how I can solve this?

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  • How to close Blackberry map programmatically

    - by nhd
    Hi all, please help me close Blackberry map programmatically from my application. I first call BB map and pass a map argument and it display seem smoothly, but in the second, when I change my map argument, BB map doesn't respond with the new argument, it keeps the old. I think I must close it before pass the new argument but don't know how to do that. Thank you.

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  • How to make VLC play .vlm config file in "With no interface mode"?

    - by Ole Jak
    How to make VLC play .vlm config file in "With no interface mode" on windows? So I have .vlm config file that should stream audio from mic to localhost so no vlc ui needed. If I say to windows "play .vlm file with vlc" it plays correctly starts server where I need and streams data. but how to do such thing manulay from cmd (so we suppouse we can call vlc.exe by vlc and we are now in folder with vlc.exe and vlcConfig.vlm file)

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  • matplotlib - changing rect colours on the fly

    - by Nick
    I am playing with matplotlib - I have a bar chart, and I want to highlight the bar which user clicks. I have a callback that goes through a rect collection (the one I got from self.axis.bar(...)) and finds out which one was clicked (looking at the coordinates). At this point I want to call something to change the colour of the current bar. Is it possible? How do I do that?

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  • How do I specify a relative local file path in DOS?

    - by donde
    I am using c#.NET 2.0 to execute DOS commands to ftp a file. All works except for 1 thing, in the cmd file I call, it runs a PUT statement. Right now the put statement has a hardcoded local file path. I need to specify a dynamic path. I've tried put %~dp0\myfile.DTL myfile.dtl but it says it can't find the file.

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  • SeFocus causing Run time error

    - by code8230
    I am getting: Run-time error '5': Invalid procedure call or argument this seems to happen when Text(1).SetFocus is called. However, I dont see this run time error for all the cases where I have used SetFocus. Just 2-3 places it is causing this error. Text(1).SelStart = 3 Text(1).SelLength = 1 Text(1).SetFocus I tried: Text(1).Enabled = True Text(1).Visible = True just above .SelStart, but it didn't fix the issue.

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  • How can I get access to spring container?

    - by Antony
    I have a spring container running, and I have class with which I want to have access to the bean created inside spring container. The class I have is not registered with the spring container. One thing I can do is that I can use MethodInvoker to call a static method, so I will have access to static field (this would be a bean from spring container) in my class always. Do we have class like WebapplicationContextUtils for a application that is not web?

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  • How to checking wether an object has a specific method or not

    - by Ghommey
    Hey, I want to use a method of an object. Like $myObject->helloWorld(). However there are a couple of methods so I loop through an array of method names and call the method like this: my $methodName ="helloWorld"; $myObject->$methodNames; This works quite nice but some objects don't have all methods. How can I tell wether $myObject has a method called helloWorld or not?

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  • ASP.Net incorrect background image style rendered

    - by user144612
    Using ASP.Net, I have a server control for which i would like to add the inline css style "background-image:none". However, when i call: writer.AddStyleAttribute("background-image", "none"); The following inline style is generated (and tries to resolve the url "none"): background-image:url(none) Is there a special syntax I can use to set the background image to none inline?

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  • Passing direct parameters to a Controller#method when testing via RSpec

    - by gmile
    Normally to pass parameters via in RSpec we do: params[:my_key] = my_value get :my_method Where my_method deals with what it received from params. But in my controller I have a method, which takes args directly i.e.: def my_method(*args) ... end How do I call the method with those args from within the test? I've tried get :my_method(args) but Ruby interpreter complains about syntax error.

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